/**
* crawl method
* Create the crawler class object and set the options for crawling
* @param type $u URL
*/
function crawl($u)
{
$C = new MyCrawler();
$C->setURL($u);
$C->addContentTypeReceiveRule("#text/html#");
/* Only receive HTML pages */
$C->addURLFilterRule("#(jpg|gif|png|pdf|jpeg|svg|css|js)\$# i");
/* We don't want to crawl non HTML pages */
$C->setTrafficLimit(2000 * 1024);
$C->obeyRobotsTxt(true);
/* Should We follow robots.txt */
$C->go();
}
}
// Now, create a instance of your class, define the behaviour
// of the crawler (see class-reference for more options and details)
// and start the crawling-process.
$crawler = new MyCrawler();
// URL to crawl
$crawler->setURL("www.php.net");
// Only receive content of files with content-type "text/html"
$crawler->addContentTypeReceiveRule("#text/html#");
// Ignore links to pictures, dont even request pictures
$crawler->addURLFilterRule("#\\.(jpg|jpeg|gif|png)\$# i");
// Store and send cookie-data like a browser does
$crawler->enableCookieHandling(true);
// Set the traffic-limit to 1 MB (in bytes,
// for testing we dont want to "suck" the whole site)
$crawler->setTrafficLimit(1000 * 1024);
// Thats enough, now here we go
$crawler->go();
// At the end, after the process is finished, we print a short
// report (see method getProcessReport() for more information)
$report = $crawler->getProcessReport();
if (PHP_SAPI == "cli") {
$lb = "\n";
} else {
$lb = "<br />";
}
echo "Summary:" . $lb;
echo "Links followed: " . $report->links_followed . $lb;
echo "Documents received: " . $report->files_received . $lb;
echo "Bytes received: " . $report->bytes_received . " bytes" . $lb;
echo "Process runtime: " . $report->process_runtime . " sec" . $lb;